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Vishay General Semiconductor - Diodes Division SMCG90CA-E3/57T
- Part No.:
- SMCG90CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90CA-E3/57T.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,978
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Product details
Overview
SMCG90CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection on signal and power lines. It features a 90 V standoff voltage (VWM), 146 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load-switching transients.
For engineers reviewing the SMCG90CA-E3/57T datasheet, SMCG90CA-E3/57T pinout, SMCG90CA-E3/57T application, or SMCG90CA-E3/57T equivalent, this device is evaluated for bidirectional clamping performance, AEC-Q101 qualification, thermal resistance (RθJA = 75 °C/W), junction temperature range (–55 °C to +150 °C), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCG90CA-E3/57T operates as a symmetrical, bidirectional avalanche diode with no polarity marking, delivering identical electrical characteristics in both directions. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing sub-microsecond transients induced by inductive switching or lightning surges.
Designed for surface-mount use in the SMCG (DO-215AB) low-profile package, it meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C), supports matte tin-plated leads per JESD 22-B102, and is qualified to AEC-Q101 for automotive under-hood and chassis applications requiring robust transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 100 V / 111 V at 1 mA - breakdown voltage range defining reliable avalanche onset |
| VC @ IPPM | 146 V at 10.3 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak surge power handling capability under standardized transient waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on recommended 8.0 mm × 8.0 mm copper pads |
| ID @ VWM | 1.0 µA - ultra-low leakage ensuring minimal standby power loss in high-impedance circuits |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded, low-profile case with matte tin-plated terminals; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical avalanche structure; no cathode band marking on bidirectional variants |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical structure; functionally identical to Anode under reverse polarity surge |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions |
| Glass-passivated junction | Ensures stable breakdown characteristics over lifetime and immunity to moisture-induced parameter drift |
| MSL Level 1 rating | Enables single-reflow assembly without baking; compatible with standard SMT reflow profiles up to 260 °C peak |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V/5 V logic |
| 1500 W PPPM (10/1000 µs) | Supports robust protection in industrial motor drives and automotive power distribution modules |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching interface ICs. Use Value: Maintains signal integrity under ±100 V transients while adding <0.5 pF capacitance, avoiding data corruption on 1 Mbps CAN lines. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from solenoid coil de-energization or AC line coupling. IC Role / Device Role / Timing Role: Primary front-end TVS across input terminals, coordinated with series impedance to limit let-through energy. Use Value: Withstands repeated 1500 W surges without degradation, extending maintenance intervals in factory automation systems. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Transient suppression on Ethernet PHY magnetics secondary side and telephone line interface circuits exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-side TVS in combination with primary GDT or MOV, providing precise clamping after coarse filtering. Use Value: 146 V clamping voltage ensures compliance with ITU-T K.21 basic protection level for class B equipment. | Use Scenario: Input-stage surge protection in USB-C PD adapters and wall-mounted chargers subjected to mains-borne transients per IEC 61000-4-5. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after fuse and common-mode choke to clamp differential-mode surges. Use Value: 90 V VWM aligns with 100 VDC rectified input rails, enabling direct integration without derating concerns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90A-E3/57T | Unidirectional; same VWM (90 V), but asymmetric clamping (VC = 146 V only in reverse direction) | Requires polarity-aware layout; unsuitable for AC-coupled or floating signal lines | Select when circuit topology enforces defined polarity and lower cost is prioritized |
| SMCJ90CA | Same bidirectional functionality, but in larger SMC (DO-214AB) package (7.11 mm × 6.22 mm vs. SMCG's 6.60 mm × 5.59 mm) | Higher thermal mass allows higher surge repetition rate; requires larger PCB area | Select when board space permits and enhanced thermal endurance is needed for repetitive surge events |
Compared with SMAJ90A-E3/57T and SMCJ90CA, the SMCG90CA-E3/57T delivers identical bidirectional clamping performance in a 25 % smaller footprint than SMCJ, while avoiding unidirectional layout constraints - making it optimal for space-constrained automotive and portable industrial modules.
Availability
SMCG90CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface circuits requiring stable component supply, AEC-Q101 compliance, and high-reliability surge immunity.
Supply support for SMCG90CA-E3/57T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified components.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, low-inductance transient suppression in harsh-environment applications where AEC-Q101 validation and compact SMT packaging are mandatory.
FAQ
What is the clamping voltage of SMCG90CA-E3/57T under a 10/1000 µs surge?
The SMCG90CA-E3/57T has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMCG90CA-E3/57T suitable for automotive applications?
Yes, SMCG90CA-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and glass-passivated junction ensure reliability in engine control units, body electronics, and ADAS sensor modules exposed to thermal cycling and mechanical vibration.
How does the bidirectional design of SMCG90CA-E3/57T affect its PCB layout?
The SMCG90CA-E3/57T has no polarity marking and functions identically in both directions, eliminating orientation constraints during automated placement. Unlike unidirectional TVS diodes, it requires no cathode band alignment - simplifying layout for AC-coupled lines, differential buses (e.g., RS-485), or floating sensor outputs where voltage polarity is undefined.
What is the thermal resistance of SMCG90CA-E3/57T, and how does it impact power dissipation?
The SMCG90CA-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads. This value determines steady-state temperature rise under DC leakage or repetitive surges; for example, 6.5 W continuous power dissipation would raise junction temperature by ~488 °C above ambient - confirming that SMCG90CA-E3/57T is intended for transient-only duty, not continuous power handling.
Does SMCG90CA-E3/57T meet RoHS and halogen-free requirements?
Yes, the "E3" suffix in SMCG90CA-E3/57T indicates RoHS-compliant, industrial-grade construction with matte tin-plated leads. It meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability. For halogen-free alternatives, Vishay offers the M3-suffixed variant (e.g., SMCG90CA-M3/57T), which is also RoHS compliant but excludes brominated flame retardants.
SMCG90CA-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG90CA-E3/57T FAQ
1.How can I place an order for SMCG90CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90CA-E3/57T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMCG90CA-E3/57T reliable?
The price and inventory of SMCG90CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG90CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG90CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90CA-E3/57T?
SMCG90CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90CA-E3/57T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMCG90CA-E3/57T?
For technical support, including SMCG90CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90CA-E3/57T requirements.
6.How does Aetrix verify that SMCG90CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG90CA-E3/57T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMCG90CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG90CA-E3/57T?
All SMCG90CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90CA-E3/57T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMCG90CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCG90CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG90CA-E3/57T Tags
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